[meteorite-list] Dhofar 008 - highly unequilibrated chondrite

From: glenmore wong <glenmorenee_at_meteoritecentral.com>
Date: Thu Apr 22 10:32:48 2004
Message-ID: <BC73D8CA.898F%glenmorenee_at_worldnet.att.net>

Hi,

If anyone is interested, I have an 11 gm slice of Dhofar 008 for sale for
$250. It is about 22mmx42mmx3mm in size and polished on both sides.

glenmore



> From: bernd.pauli_at_paulinet.de
> Date: 09 Mar 2004 07:41:53 UT
> To: Meteorite-list_at_meteoritecentral.com
> Subject: [meteorite-list] Dhofar 008 - highly unequilibrated chondrite
>
> Stan wrote:
>
>> Does anyone have any more information about Dho 008?
>> The Cometshop guys have been selling it as an L3.2,
>> however I have seen reference to it as an H/L. Any further
>> insight would be appreciated ...
>
> Dhofar 008 has a weathering grade of W2 and a shock stage
> of 3. So far so good. But now the problems really start :
>
> a) the average chondrule diameter puts it in the low range
> of average chondrule sizes for the L group;
>
> b) Fa content of olivine varies in a wide range from 1.3-50.4
> proof of its being (highly unequilibrated);
>
> c) The average Fa and Fs values are in the range for H chondrites (!);
>
> d) The range of Co contents in kamacite includes the ranges for H
> and L chondrites;
>
> e) Bulk chemical composition show that it has the typical
> characteristics of L group chondrites;
>
> f) Oxygen isotopic compositions are almost in the range
> of LL chondrites;
>
> g) Oxygen isotopic compositions resemble those for Tieschitz (H/L);
>
> The authors conclude that the meteorite:
>
> (a) corresponds to petrological type 3.2/3.3;
> (b) may contain material from several different reservoirs.
>
>
> Best regards,
>
> Bernd
>
>
> Reference:
>
> IVANOVA M.A. et al. (2001) Geochemical and thermoluminescence
> studies of Dhofar 008, a L3.2/3.3 chondrite (MAPS 36-9, 2001, A088).
>
>
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Received on Tue 09 Mar 2004 11:25:46 PM PST